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Finding the Fourth Proportional to 261,546.76, 360,961.14 and 154,151.44

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Solution

The fourth proportional to 261,546.76, 360,961.14 and 154,151.44 is: 212,744.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,546.76 : 360,961.14 = 154,151.44 : x
  2. Step 2: Convert to fraction form
    261,546.76/360,961.14 = 154,151.44/x
  3. Step 3: Cross multiply
    261,546.76x = 360,961.14 × 154,151.44
  4. Step 4: Simplify right side
    261,546.76x = 55,642,679,515.04
  5. Step 5: Solve for x
    x = 55,642,679,515.04/261,546.76
  6. Step 6: Final answer
    x = 212,744.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.